{"video_id":"sJDCegVupYw","title":"Adaptive Fan Control on the NVIDIA GeForce GTX 580 Explanation & Demonstration Linus Tech Tips","channel":"Linus Tech Tips","show":"Linus Tech Tips","published_at":"2011-05-08T14:53:29Z","duration_s":296,"segments":[{"start_s":0.719,"end_s":8.8,"text":"Now, I'm going to have to talk over this full speed fan. Right now, I have the","speaker":null,"is_sponsor":0},{"start_s":5.12,"end_s":11.04,"text":"fan manually set to uh Okay, you can't","speaker":null,"is_sponsor":0},{"start_s":8.8,"end_s":14.2,"text":"really tell, but I unchecked auto. I took it to the very end and then I","speaker":null,"is_sponsor":0},{"start_s":12.4,"end_s":19.279,"text":"clicked apply. And that's how loud it is. This","speaker":null,"is_sponsor":0},{"start_s":16.64,"end_s":22.56,"text":"thing is loud. Um, so I'm going to have to talk over it a little bit, but I want","speaker":null,"is_sponsor":0},{"start_s":21.199,"end_s":26.96,"text":"to show you guys something really neat. So, I turned auto back on. And watch","speaker":null,"is_sponsor":0},{"start_s":25.039,"end_s":34.559,"text":"what's happening to the fan speed right now.","speaker":null,"is_sponsor":0},{"start_s":28.72,"end_s":34.559,"text":"It's going down by one percentage at a","speaker":null,"is_sponsor":0},{"start_s":37.559,"end_s":41.68,"text":"time. And if you listen to","speaker":null,"is_sponsor":0},{"start_s":56.12,"end_s":63.359,"text":"it, it's a very very gradual progression","speaker":null,"is_sponsor":0},{"start_s":61.52,"end_s":67.76,"text":"in terms of the noise level. Now, it actually does the same thing when the","speaker":null,"is_sponsor":0},{"start_s":65.199,"end_s":72.08,"text":"fan speed is ramping up compared to previous cards from NVIDIA as well as","speaker":null,"is_sponsor":0},{"start_s":70.159,"end_s":77.119,"text":"from their competition. So NVIDIA's added what they're calling adaptive fan","speaker":null,"is_sponsor":0},{"start_s":74.04,"end_s":79.439,"text":"control, which is a way of saying that","speaker":null,"is_sponsor":0},{"start_s":77.119,"end_s":84.159,"text":"instead of the fan speed going from, you know, idle, so so pretty much silent on","speaker":null,"is_sponsor":0},{"start_s":82.4,"end_s":89.439,"text":"almost every NVIDIA card for the last couple generations","speaker":null,"is_sponsor":0},{"start_s":86.52,"end_s":94.88,"text":"to as soon as you start gaming, you'll actually see like look how gradual that","speaker":null,"is_sponsor":0},{"start_s":92.159,"end_s":99.68,"text":"ramp down is of the fan speed once the card realizes that it doesn't need the","speaker":null,"is_sponsor":0},{"start_s":96.799,"end_s":103.2,"text":"fan to go as high as it is. So, why don't we give you the opposite example","speaker":null,"is_sponsor":0},{"start_s":101.28,"end_s":108.32,"text":"really quick here and I'm going to fire up Firmark in extreme burn mode and show","speaker":null,"is_sponsor":0},{"start_s":106.24,"end_s":113.2,"text":"you just what happens with that fan speed right","speaker":null,"is_sponsor":0},{"start_s":110.759,"end_s":117.24,"text":"there. Actually, here to speed things up a little bit, I'm going to go ahead and","speaker":null,"is_sponsor":0},{"start_s":115.36,"end_s":122.719,"text":"cover the intake of the fan with a piece of","speaker":null,"is_sponsor":0},{"start_s":120.36,"end_s":127.56,"text":"paper. So, there now you can see it's finally going up. So, it's it stepped","speaker":null,"is_sponsor":0},{"start_s":124.56,"end_s":130.879,"text":"itself up one and then","speaker":null,"is_sponsor":0},{"start_s":127.56,"end_s":130.879,"text":"2%. And then","speaker":null,"is_sponsor":0},{"start_s":134.44,"end_s":138.0,"text":"3%. 4","speaker":null,"is_sponsor":0},{"start_s":139.48,"end_s":146.879,"text":"5 6. So, this allows it to be a lot","speaker":null,"is_sponsor":0},{"start_s":144.4,"end_s":152.319,"text":"smarter about how much noise it's outputting depending on the amount of","speaker":null,"is_sponsor":0},{"start_s":149.68,"end_s":157.2,"text":"load on the GPU. So, I personally think this is pretty cool because it means","speaker":null,"is_sponsor":0},{"start_s":154.48,"end_s":162.319,"text":"that you don't get that uh that obnoxious uh uh up and down movement of","speaker":null,"is_sponsor":0},{"start_s":160.64,"end_s":165.28,"text":"the fan. Like say you're in a you're playing a game where there's a certain","speaker":null,"is_sponsor":0},{"start_s":163.76,"end_s":171.04,"text":"intensive part and then there's a less intensive part and you hear the fan","speaker":null,"is_sponsor":0},{"start_s":167.8,"end_s":173.04,"text":"go. or if it's at that borderline where","speaker":null,"is_sponsor":0},{"start_s":171.04,"end_s":177.599,"text":"it's uh it's it's just like let's say the uh the fan profile on the card is if","speaker":null,"is_sponsor":0},{"start_s":175.28,"end_s":181.28,"text":"it gets to 80 degrees then the fan ramps up to cool it down and then it cools it","speaker":null,"is_sponsor":0},{"start_s":179.44,"end_s":185.92,"text":"down to 75 but then it heats back up to 80 and then it and so you have that that","speaker":null,"is_sponsor":0},{"start_s":184.0,"end_s":192.12,"text":"constant up and down up and down motion. Well, this will make that kind of uh","speaker":null,"is_sponsor":0},{"start_s":188.8,"end_s":194.239,"text":"well adaptive cooling almost","speaker":null,"is_sponsor":0},{"start_s":192.12,"end_s":198.92,"text":"unnoticeable unless you got your ear to the card. So that's pretty darn cool.","speaker":null,"is_sponsor":0},{"start_s":200.159,"end_s":207.239,"text":"So, just for context, here's the same demo with the GTX 480. So, I'm going to","speaker":null,"is_sponsor":0},{"start_s":205.2,"end_s":213.12,"text":"turn on auto fan control. And boom, it's quiet. Okay. And","speaker":null,"is_sponsor":0},{"start_s":210.959,"end_s":219.44,"text":"then if I go ahead and do what I was doing before with the 580, turn on firm","speaker":null,"is_sponsor":0},{"start_s":216.28,"end_s":222.159,"text":"mark, cover up the fan, you're going to","speaker":null,"is_sponsor":0},{"start_s":219.44,"end_s":227.48,"text":"see that even though it shows that the the fan speed is going up, you know, one","speaker":null,"is_sponsor":0},{"start_s":224.64,"end_s":232.879,"text":"lone percentage at a time here. I'll wait till it uh starts","speaker":null,"is_sponsor":0},{"start_s":230.64,"end_s":236.959,"text":"going here and I'll put the camera a little closer. You're going to be able","speaker":null,"is_sponsor":0},{"start_s":233.92,"end_s":241.4,"text":"to hear the fan ramp up really fast,","speaker":null,"is_sponsor":0},{"start_s":236.959,"end_s":241.4,"text":"kind of like a a jet taking off.","speaker":null,"is_sponsor":0},{"start_s":284.96,"end_s":292.32,"text":"So, contrast that with how slowly and smoothly the 580 fan ramps up and you","speaker":null,"is_sponsor":0},{"start_s":290.479,"end_s":297.52,"text":"have yourself a very good reason for NVIDIA to implement their new adaptive","speaker":null,"is_sponsor":0},{"start_s":294.639,"end_s":297.52,"text":"fan control.","speaker":null,"is_sponsor":0}],"full_text":"Now, I'm going to have to talk over this full speed fan. Right now, I have the fan manually set to uh Okay, you can't really tell, but I unchecked auto. I took it to the very end and then I clicked apply. And that's how loud it is. This thing is loud. Um, so I'm going to have to talk over it a little bit, but I want to show you guys something really neat. So, I turned auto back on. And watch what's happening to the fan speed right now. It's going down by one percentage at a time. And if you listen to it, it's a very very gradual progression in terms of the noise level. Now, it actually does the same thing when the fan speed is ramping up compared to previous cards from NVIDIA as well as from their competition. So NVIDIA's added what they're calling adaptive fan control, which is a way of saying that instead of the fan speed going from, you know, idle, so so pretty much silent on almost every NVIDIA card for the last couple generations to as soon as you start gaming, you'll actually see like look how gradual that ramp down is of the fan speed once the card realizes that it doesn't need the fan to go as high as it is. So, why don't we give you the opposite example really quick here and I'm going to fire up Firmark in extreme burn mode and show you just what happens with that fan speed right there. Actually, here to speed things up a little bit, I'm going to go ahead and cover the intake of the fan with a piece of paper. So, there now you can see it's finally going up. So, it's it stepped itself up one and then 2%. And then 3%. 4 5 6. So, this allows it to be a lot smarter about how much noise it's outputting depending on the amount of load on the GPU. So, I personally think this is pretty cool because it means that you don't get that uh that obnoxious uh uh up and down movement of the fan. Like say you're in a you're playing a game where there's a certain intensive part and then there's a less intensive part and you hear the fan go. or if it's at that borderline where it's uh it's it's just like let's say the uh the fan profile on the card is if it gets to 80 degrees then the fan ramps up to cool it down and then it cools it down to 75 but then it heats back up to 80 and then it and so you have that that constant up and down up and down motion. Well, this will make that kind of uh well adaptive cooling almost unnoticeable unless you got your ear to the card. So that's pretty darn cool. So, just for context, here's the same demo with the GTX 480. So, I'm going to turn on auto fan control. And boom, it's quiet. Okay. And then if I go ahead and do what I was doing before with the 580, turn on firm mark, cover up the fan, you're going to see that even though it shows that the the fan speed is going up, you know, one lone percentage at a time here. I'll wait till it uh starts going here and I'll put the camera a little closer. You're going to be able to hear the fan ramp up really fast, kind of like a a jet taking off. So, contrast that with how slowly and smoothly the 580 fan ramps up and you have yourself a very good reason for NVIDIA to implement their new adaptive fan control."}